Eyelet setting tool and control mechanism therefor



Aug. 14, 1951 .1. A. WELEBNY 2,564,617

EYELET SETTING TOOL AND CONTROL MECHANISM THEREFOR Filed March 25, 1948 s Sheets-Sheet 1 t l4 57 L2 2 10 60 4 E L I ll] II -.5 I: l r z; j I! A W 27 s2 INVENTOR. .lillxfus f], Wleny HTTORNEY Aug. 14, 1951 J. A. WELEBNY EYELET SETTING TOOL AND CONTROL MECHANISM THEREFOR Filed March 23, 1948 O .91 1 4o F 24$ 5 41 ii- 47 J; g

22 @460 $4 14 $6 /ZF 2-; 2e;

3 Sheets-Sheet 2 Ill IN V EN TOR.

Julius fl Wm B LAQW HTTOIPNEY 1951 J. A. WELEBNY 2,564,617

EYELLET SETTING TOOL AND CONTROL MECHANISM THEREFOR Filed March 23, 1948 3 Sheets-Sheet 5 70 66 IIIIHI HM 55 I 11/ H 20 ea 51 i INVENTOR. I p /1m f]. fi Z/zny HTTOIPNE 7' Patented Aug. 14,1951

UNITED sures TENT orriclzi EYELET SETTING TOOL AND CONTROL MECHANISM THEREFOR Julius-A. Welebny, Rock'ville .Gentre, N. Y.

Application March 23, 1948, Serial No. 16,524

15 Claims. 1

" The present invention relates to tools forset ting eyelets or grommets and the like, and'more particularly to such tools in cooperative association with mechanism for controlling the operation thereof.

The invention aims to provide a tool of the aforementioned character comprising elements which are in the nature of attachments adapted converts conventional machine into automatic eyelet setting machines.

Another object is to provide a tool for more effectively setting eyelets andthe like.

A further object consists. in the combination andarrangement of elements whereby the foregoing objects may be accomplished.

Other and further objects will be obvious upon an understanding of the illustrative embodiment about to be described, or will be indicated in the appended claims, and variou advantages not re+ ferred to herein will occur to one skilled in the art upon employment of they invention in practice.

Inaccordance with the invention, the foregoing objects are accomplished by providing a tool adapted to be carried by the spindle of a drill press or the like for effecting the spinning of eyelets or the like while applying vibration. to

the material into which the eyelet is being set,

as well as to the eyelet, to facilitate forming the eyelet, and cooperating elements adapted to be carriedby the column or other supporting structure of the drill press for automatically rendering the tool effective and ineffective during its movement on the spindle with respect to the work.

A preferred embodiment of the invention has been chosen for purposes of illustration and description. and is shown in the accompanying drawing, forming a part of the specification, wherein:

Figure 1 is an elevational view of a portion of.

a drill press having a tool and control mechanism attached thereto.

Figure 2. is a sectional view taken along the line 2-2 on Figure 1.

Figure 3 is a view of the eyelet setting tool shown partly in elevation and partly in. section.

Figure 4 is a longitudinal sectional view of the tool shown in Figure 3.

Figure 5 is a sectional view taken along line 5 -5 on Figure 4;

Figure 6 is an exploded perspective view'ill'us trating elements of the tool in detail.

Figure 7 is an elevational view partly in section taken alongthe line 'l--'l on Figure 2.

Figure 8 is a sectional view taken along the line 8-8 on Figure 2, illustrating details of'thecontrol mechanism.

Figure 9 is a sectional view taken along the line 9-9 on Figure 8;

Referring to the drawings and more particularly to Figures 1 and 2 thereof, there is showna portion of a drill press or similar machine having an upright column or structural member Ill and a rotatable spindle H supported on the column by a horizontal arm or bracket l2. The driving mechanism and the means for raising and lowering the spindle are not shown since such devices are well known. Furthermore it will bereadily appreciated that such devices are-adapted to be controlled manually or by automatic or semi-automatic means.

The' drill press shown is equipped with apparatus in accordance with the present invention which generally comprises a tool I4 carried by the spindle II for setting a rivet or an eyelet E with relation to a work piece W supported by an anvil A, and control mechanism for the tool l4, including means generally indicated by the reference character l5 (Figure 2) supported on a two-piece bracket [6 of adjustable length, which is secured to the column In, and including means generallyindicated by the reference character ll (Figure 1) carried by the spindle I I for operating the means I5 during upward and downward movement of the spindle.

The eyelet setting tool I4 is illustrated in detail in Figures 3 to 6, and, as shown, comprises a. spindle portionlll .threadedly or otherwise secured to the drill press spindle II at 2| (Figure 4) for rotation therewith, and a tubular sleeve or casing 22 c'oupled'to the spindle portion 20 by a ring 24 to provide for relative rotation and axial movement between the casing 22 and the spindle portion 20.

The casing 22 is formed with a reduced lower portion 25 providing an upwardly facing shoulder 26, and is formed withv a constricted tubular lower end 21- forengaging the workpiece W and for holding it against the anvil A, the lower end having a bore 28 extending therethrough. The casing is further provided with a longitudinally extending vertical slot orrecess 30 formed in. the side wall thereof above the portion 25, and. a lateral projection 3! at the upper end thereof, constituting a portion of. a flange 32 (Figure 5),,

. 3 the function of which will become apparent hereinafter.

The spindle portion 20 extends partly into the casing 22 and has a reduced tubular portion 34 at its lower endfor providing a downwardly facing shoulder 35 and has a central bore 36.

An eyelet setting member in the form of a rod 31 formed with a spinning means 39 of conventional construction at the lower end thereof has its upper end extending into the bore 36 and is secured to the spindle portion by a set screw 40 or the like.

Relative rapid vibration between the rod 31 secured to the spindle portion 20 and the casing 22 is adapted to be effected by cam means which comprise a cam element on the shoulder 35, herein shown (Figure 6) as an annular member 4| having a pair of diametrically opposite radially extending grooves 42 on the underside thereof, a central aperture 44 through which the portion 34 extends, and a vertical off-center aperture 45 housing a pin 46 (Figure 4) secured to the spindle portion for preventing relative rotation between the latter and the annular member; and a second annular member 41 facing the member 4| having diametrically opposite radially extending ribs 49-, a central aperture 50 through which the portion 34 extends, and a lateralprojection or finger keyed in the slot 30 to prevent relative rotation between the member 41 and the casing 22 but permitting relative axial movement thereof effected by the cooperation of the grooves 42 and ribs 49. The annular member 41 is urged into engagement with the annular member 4| by a spring 52 having its lower end supported on the shoulder 26 of the casing and having its upper end engaging the underside of the member 41 (Figure 4).

The control mechanism |5 for the tool M is best illustrated in Figures 1, 2, '1, 8 and 9, and comprises a movable member, such as an L- shaped member 55, pivotally mounted on the bracket l6 adjacent the free end thereof by a pin 56, and a latch element 51 pivotally mounted adjacent the member 55 by a pin 59.

- The member 55 has a hook-shaped locking projection or finger 68 at one end thereof adapted to engage the stop projection 3| of the tool casing 22 and has an arm 6| at its other end formed with a cam face 63 at one side and latching means 62 adapted to cooperate with the latching element 51 as described hereinafter.

The latching element 51 has an arm 64 at one end thereof formed with latching means 65 adapted to cooperate with the latching means 52 of the member 55 and has an operating arm 66 at the other end thereof extending over a slot 61 in the bracket l6 and being formed with a cam face 69 at one side thereof (Figures 8 and 9), the purpose of which will become apparent hereinafter.

A spring or the like has one end thereof connected to the arm BI and has the other end thereof connected tothe arm 64 for normally urging the member 55 into a position for effecting engagement of the stop projection 3| by the locking projection 60, and for normally urging the member 55 and the element 51 into a position for effecting latching cooperation of the means 62 and 65.

The control operating means |1 comprise a depending member connected at its upper end for adjustment in a vertical direction by a clamp 16 or the like carried by the spindle sleeve 11 of the drill press, by way of example, and having a pair of bifurcated vertical fingers 19 and 80 at its lower end for controlling the position of the member 55, as about to be described.

The finger 19 has a diagonal cam face 8| at its lower end for engaging the cam face 69 of the latching element to operate the latter to release the member and the finger 80 has an enlargement 82 at its lower end formed with a cam face 84 at one side for engaging the cam face 63 to effect resetting of the member 55.

In operation, the bracket l6 and the member 15 are adjusted so that the cooperating parts thereof are properly positioned in working relation. The work piece W and the rivet or eyelet E extending therethrough are positioned on the anvil in axial alignmentwith the lower end 21 of the tool casing and the rod 31 adapted to extend therethrough.

Assuming that the drill press spindle and the tool l4 carried thereby are in an upper position, the member 15 is in the position with relation to the control means on the bracket I6, as shown in Figure 8. and the control means are positioned as shown in Figure 9 with the member 55 and the element 51 and their latching means 62 and 65 cooperating with the aid of the spring 10 to latch the member 55 in a position so that the projections 3| and will not engage. With the parts so positioned, rotation of the drill press spindle in a clock-wise direction, as viewed in Figures 2 and 9, will cause the tool casing 22 to rotate therewith without effecting vibration of the casing 22.

As the spindle II and the-member 15 descend, the enlargement 82 on the finger 89 passes through the slot 61 in the bracket and between the arms 6| and 66 without disturbing their positions (Figure 8). Upon further descent'of the member 15, the cam face 8| on the finger 19 engages the cam face 69 on the arm 66 of the latching element and effects clock-wise movement of the latter from the position shown in Figure 9 to the position shown in Figure 2. Such movement causes the latching means 62 and to disengage, whereby the spring 10 urges the member 55 to the position shown in Figure 2 to enable the projection 60 thereon to engage the stop projection 3| on the tool casing 22 as the latter is rotated clockwise.

When the tool casing 22 is locked against rotation, as just described, the spindle portion 20 rotates with respect to the casing 22 and the annular member 4|, carried by the spindle portion, rotates with respect to the annular member 41, which is retained against rotation by the tool casing 22, whereby the grooves 42 and ribs 49 are rapidly moved into and out of registry under influence of the spring 52, the vertical movements of member 41 being transmitted through this spring to effect periodic vertical reciprocating movement or vibration of the tool casing 22.

As the tool moves into engagement with the work piece W, the work piece is vibrated by the end 21 of the tool casing 22 and the spinning means 39 sets the rivet or eyelet E. This vibration enables the eyelet and the work piece to be pulled tightly together before the completion of the spinning of the eyelet, whereby the eyelet may be securely attached to the work piece. It will thus be seen that the lower end 21 of the casing 22 not only holds the work piece W in place but also imparts a vibratory, and hence, compressive force, like a trip hammer, against the work piece W.

Upon completion of the foregoing described operation, the drill' press spindle and tool are raised fromtheir lowermost pos'itiomasshown in Figures 1 and 2. During the ascent thereof, the cam face 84' on the finger 80 engages the cam face 83 on the arm Bl to rock the member 55- in a counter-clockwise direction and to momentarily retain the member 55in a position, such as shown in Figure 9, to enable the latching means s2 and EEto reengage under the influence of the spring 18, whereby the control means member 55 and element 5? are relatched for the next operation.

From the foregoing description, it will be seen that the present invention provides an improved tool and operating mechanism for setting eyelets, rivets, tubular rivets, and the like, which tool and mechanism are simple and economical in construction and effective in operation; The apparatus in accordance with the present invention is readily adjustable and is adaptable for use in conjunction with a large variety of machines, such as drill presses and the like. The apparatus is rugged in construction and can readily withstand such rough usage to which it may normally be subjected.

As various changes may be made in the form, construction and arrangement of the parts herein, Without departing from the spirit and scope of the invention and without sacrificing any of its advantages, it is to be understood that all matters herein are to be interpreted as illustrative and not in any limiting sense.

I claim:

1. In combination with a drill press or the like having a supporting column and a rotatable spindle, an eyelet setting tool carried by the spindle, said tool having relatively movable parts, one of said parts being rigidly secured to said spindle and adapted to rotate therewith, a bracket on the column having a free end extending towards the spindle, pivotal means on said bracket free end constructed and arranged to be positioned for arresting rotation of the other of said parts to lock the same to condition said parts for relative movement therebetween,

means for locking said pivotal means in a position to prevent the same from arresting said other of said parts, and means associated with the spindle having an element for releasing said locking means upon movement of said element towards said bracket.

2. In combination with a drill press or the like having a supporting column and a rotatable spindle, an eyelet setting tool carried by the spindle, said tool having relatively movable parts, one of said parts being rigidly secured to said Spindle and adapted to rotate therewith, a bracket on the column having a free end extending towards the spindle, pivotal means on said bracket free end constructed and arranged to be positioned for arresting rotation of the other of said parts to lock the same to condition said parts for relative movement therebetween, means for locking said pivotal means in a position to prevent the same from arresting said other of said parts, and means associated with the spindle having an element for releasing said locking means upon movement of said element towards said bracket, and having an element for permitting said locking means to be moved into latching position upon movement of said last mentioned element away from said bracket.

3; In combination with a drill press or the like having a supporting column and a rotatable spindle, an eyelet setting. tool carried by the 6: spindle, said tool having relatively movable parts, one of said parts being: rigidly secured to said spindle and adapted to rotate therewith; the other of said parts being provided with a shoulder, a bracket on the column extending towards the spindle, a locking member pivotally mounted on said'bracket and 'having an 'arm at one end thereof formed with an element for 11- gaging said shoulder to lock said part provided with the shoulder against rotation and thereby condition said relatively movable parts for relative movement therebetween and having an arm at its otherend' engageable for positioningsaidlocking member, a latch pivotally mounted on said bracket and havin a latching arm at one end thereof for engaging said engagea'ble arm of said locking member and havinga'n arm at its other end for operating s'aidlatch, and a member carried by said spindle having a finger for engagin the operating arm of said latch to op crate the same to release said'lo'cking member and permit'said element thereof to engage said shoulder upon movement of said'- spindlevto' wards said bracket and having a second finger for engaging the e'ngageable arm of said locking member to permit movement of said latching arm into latching position relative to said engageable arm and cause saidelement of" said locking member to release said shoulder upon movement of said spindle away from said bracket.

4. In combination with av drill press orthe like having a supporting column and a rotatable spindle, an eyelet settin tool carried by the spindle, said tool having relatively movable parts, one of said parts being rigidly" secured to said spindle and adapted to rotate therewith, the other of said parts being provided with a shoulder, a bracket on the column extendingtowards the spindle, a locking member pivotally mounted on said bracket andhaving an arm at one end thereof formed with an element for engaging said shoulder to lock said part providedwith the shoulder against rotation and thereby condition said relatively movable parts for relative movement therebetween and having an arm. at its other end engageable for positioning saidlocking member,. a latch pivotally mounted onsaid bracket and having a latching arm at one end thereof for engaging said engageable arm of said locking member and havin an arm atits other end for operating said latch, and a member carried by said spindle having a finger for engaging the operating arm of said latch to operate the same to release said locking member and permit said element thereof to engagesaid shoulder upon movement of said spindle towards said bracket and having a second finger for engaging the engageable arm of said locking member to permit movement of said latching arm into latching position relative to said engageable arm and cause said element of said locking member to release said shoulder upon movement of said spindle away fromsaid bracket, and resilient means for urging said locking member into shoulder engaging position.

5. In combination with a drill press or the. like having a supporting column and a rotatable spindle, an eyelet setting tool carried by the spindle, said tool having relatively movable parts, one of said parts being rigidly secured to said spindle and adapted to rotate therewith, the other of said parts being provided with a shoulder, a bracket on the column extending towards the spindle, a lockin member pivotally mount-- ed on said bracket and having an armat one end thereof formed with an element for engaging said shoulder to lock said part provided with the shoulder against rotation and thereby condition said relatively movable parts for relative movement therebetween and having an arm at its other end engageable for positioning said locking member, a latch pivotally mounted on said bracket and having a latching arm at one end thereof for engaging said engageable arm of said locking member and having an arm at its other end for operating said latch, a member carried by said spindle having a finger for engaging the operating arm of said latch to operate the same to release said locking member and permit said element thereof to engage said shoulder upon movement of said spindle towards said bracket and having a second finger for engaging the engageable arm of said locking member to permit movement of said latching arm into latching position relative to said engageable arm and cause said element of said locking member to release said shoulder upon movement of said spindle away from said bracket, and resilient means for urging said latching arm into engagement with said engageable arm.

6. In combination with a drill press or the like having a supporting column and a rotatable spindle, an eyelet setting tool carried b the spindle, said tool having relatively movable parts, one of said parts being rigidly secured to said spindle and adapted to rotate therewith, the other of said parts being provided with a shoulder, a bracket on the column extending towards the spindle, a locking member pivotally mounted on said bracket and having an arm at one end thereof formed with an element for engaging said shoulder to lock said part provided with the shoulder against rotation and thereby condition said relatively movable parts for relative movement therebetween and havin an arm at its other end engageable for positioning said locking member, a latch pivotally mounted on said bracket and having a latching arm at one end thereof for engaging said engageable arm of said locking member and having an arm at its other end for operating said latch, a member carried by said spindle having a finger for engaging the operating arm of said latch to operate the same to release said locking member and permit said element thereof to engage said shoulder upon movement of said spindle towards said bracket and having a second finger for engaging the engageable arm of said locking member to permit movement of said latching arm into latching position relative to said engageable arm and cause said element of said locking member to release said shoulder upon movement of said spindle away from said bracket, and a spring having one end connected to said locking member and having its other end connected to said latch for urging said locking member into shoulder engaging position upon release of said latch and for urging said latch into latching position upon. movement of said locking memher out of shoulder engaging position.

'7. A tool operating attachment for use in connection with a drill press having a supporting column and a rotatable spindle, comprising a bracket attached to the column, a member pivotally mounted on said bracket adjacent the free end thereof having a locking projection at one end and an arm at its other end, a latch pivotally mounted on said bracket adjacent said member having a latching arm at one end for engaging the arm of said member and having an operatin arm at its other end, and an operating member attached to the spindle having an element for engaging the operating arm of said latch to effect unlatching of said pivotally mounted member and having a second element for engaging the arm of said pivotally mounted member to move the same out of lockin position and into position so as to permit said latching arm to be moved into latching position.

8. A tool operating attachment for use in connection with a drill press having a supporting column and a rotatable spindle, comprising a bracket attached to the column, a member pivotally mounted on said bracket adjacent the free end thereof having a locking projection at one end and an arm at its other end, a latch pivotally mounted on said bracket adjacent said member having a latching arm at one end for engaging the arm of said member and having an operating arm at its other end, an operating member attached to the spindle having an element for engaging the operating arm of said latch to efiect unlatching of said pivotally mounted member and having a second element for engaging the arm of said pivotally mounted member to move the same out of locking position and into position so as to permit said latching arm to be moved into latching position, and a spring for effecting movement of said pivotally mounted member upon unlatching thereof.

9. A tool operating attachment for use in connection with a drill press having a supporting column and a rotatable spindle, comprising a bracket attached to the column, a member pivotally mounted on said bracket adjacent the free end thereof having a locking projection at one end and an arm at its other end, a latch pivotally mounted on said bracket adjacent said member having a latching arm at one end for engaging the arm of said member and having an operating arm at its other end, an operating member attached to the spindle having an element for engaging the operating arm of said latch to effect unlatching of said pivotally g mounted member and having a second element for engaging the arm of said pivotally mounted member to move the same out of locking position and into position so as to permit said latching arm to be moved into latching position, and a spring for retaining said latch in latched position.

10. A tool operating attachment for use in connection with a drill press having a supporting column and a rotatable spindle, comprising a bracket attached to'the column, a member pivotally mounted on said bracket adjacent the free end thereof having a locking projection at one end and an arm at its other end, a latch pivotally mounted on said bracket adjacent said member having a latchin arm at one end for engaging the arm of said member and. having an operating arm at its other end, an operating member attached to the spindle having an element for engaging the operating arm of said latch to effect unlatching of said pivotally mounted member and having a second element for engaging the arm of said pivotally mounted member to move the same out of locking position and into position so as to permit said latching arm to be moved into latching position, and a spring having one end connected to said pivotally mounted member and having its other end connected to said latch for retaining said latch in latching position and for effecting movement 9 of said pivotally mounted member upon unlatching thereof.

11. An eyelet setting tool comprising a rotatable casing, a rotatable eyelet setting member mounted for relative axial movement in said casing, a rotatable member rigidly connected to said setting member, means on said casing adapted to be arrested to prevent rotation of said casing, and means operated by said rotatable member for rapidly vibrating said casing axially with respect to said eyelet setting member.

12. An eyelet setting tool comprisin a rotatable casing, a rotatable eyelet setting member mounted for relative axial movement in said casing, a rotatable member rigidl connected with said setting member, and means operated by said rotatable member for rapidly vibrating said casing axially with respect to said eyelet setting member, said casing and rotatable member being constructed and arranged for relative rotation therebetween and said casin having a projection thereon adapted to be engaged to prevent rotation of said casing and thereby condition said aforementioned elements for rotation of said rotatable member with respect to said casing.

13. An eyelet setting tool comprising a rotatable casing, a rotatable eyelet setting member mounted for relative axial movement in said casing, a sprin for urging said casing in one direction with respect to said member, a rotatable member rigidly connected with said setting member, means on said casing adapted to be arrested to prevent rotation of said casing, and means operated by said rotatable member cooperating with said spring for rapidly vibrating said casing axially with respect to said eyelet setting member.

14. An eyelet setting tool comprising a tubular casing havin a constricted tubular lower end for engagement with a work piece and having a longitudinally extending slot in the side wall thereof, a rotatable spindle coupled to said casing for relative rotation with respect thereto, an eyelet spinning member carried by said spindle for rotation therewith and extending to the lower end of said casing for engagin an eyelet associated with the work piece, a cam element on said spindle arranged for rotation therewith, a second cam element disposed in cooperating relation with said first cam element and having a lateral projection extending into said slot to lock the same against rotative movement with respect to said member and permit axial movement thereof with respect to said casing, and a spring in said casing supported at one end by said casing and having its other end engaging said second cam element to urge the same into engagement with said first cam element.

15. An eyelet setting tool comprising a tubular casing having a constricted tubular lower end for engagement with a work piece and having a longitudinall extendin slot in the side wall thereof, a rotatable spindle coupled to said casing for relative rotation with respect thereto, an eyelet spinning member carried by said spindle for rotation therewith and extendin to the lower end of said casing for engaging an eyelet associated with the work piece, a cam element on said spindle arranged for rotation therewith, a second cam element disposed in cooperating relation with said first :cam element and having a.

lateral projection extending into said slot to lock the same against rotative movement with respect to said member and permit axial movement thereof with respect to said casing, and a spring in said casing supported at one end by said casing and having its other end engaging said second cam element to urge the same into engagement with said first cam element, said casing having a lateral projection thereon adapted to be engaged to prevent rotative movement of said casing with respect to said spindle and thereby condition said casing and spindle for relative rotation therebetween.

JULIUS A. WELEBNY.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date 827,994 Petrelli Aug. '7, 1906 968,718 Whalstron' Aug. 30, 1910 1,017,990 Ogle Feb. 20, 1912 1,196,656 Bugbee Aug. 29, 1916 1,846,116 Kerns Feb. 23, 1932 2,332,935 Schlack Oct. 26, 1943 2,404,053 Glover July 16, 1946 2,453,137 Karweit Nov. 9, 1948 

